Yomichan is an ongoing community project. It really does take a village, and everyone who contributes code owns a part of it :)
158 lines
5.9 KiB
JavaScript
158 lines
5.9 KiB
JavaScript
/*
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* Copyright (C) 2017-2020 Yomichan Authors
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*
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* This program is free software: you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation, either version 3 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program. If not, see <https://www.gnu.org/licenses/>.
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*/
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/* global
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* jp
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*/
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class AudioUriBuilder {
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constructor() {
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this._getUrlHandlers = new Map([
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['jpod101', this._getUriJpod101.bind(this)],
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['jpod101-alternate', this._getUriJpod101Alternate.bind(this)],
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['jisho', this._getUriJisho.bind(this)],
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['text-to-speech', this._getUriTextToSpeech.bind(this)],
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['text-to-speech-reading', this._getUriTextToSpeechReading.bind(this)],
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['custom', this._getUriCustom.bind(this)]
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]);
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}
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normalizeUrl(url, baseUrl, basePath) {
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if (url) {
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if (url[0] === '/') {
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if (url.length >= 2 && url[1] === '/') {
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// Begins with "//"
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url = baseUrl.substring(0, baseUrl.indexOf(':') + 1) + url;
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} else {
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// Begins with "/"
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url = baseUrl + url;
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}
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} else if (!/^[a-z][a-z0-9\-+.]*:/i.test(url)) {
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// No URI scheme => relative path
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url = baseUrl + basePath + url;
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}
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}
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return url;
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}
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async getUri(definition, source, options) {
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const handler = this._getUrlHandlers.get(source);
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if (typeof handler === 'function') {
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try {
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return await handler(definition, options);
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} catch (e) {
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// NOP
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}
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}
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return null;
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}
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async _getUriJpod101(definition) {
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let kana = definition.reading;
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let kanji = definition.expression;
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if (!kana && jp.isStringEntirelyKana(kanji)) {
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kana = kanji;
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kanji = null;
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}
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const params = [];
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if (kanji) {
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params.push(`kanji=${encodeURIComponent(kanji)}`);
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}
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if (kana) {
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params.push(`kana=${encodeURIComponent(kana)}`);
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}
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return `https://assets.languagepod101.com/dictionary/japanese/audiomp3.php?${params.join('&')}`;
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}
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async _getUriJpod101Alternate(definition) {
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const response = await new Promise((resolve, reject) => {
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const xhr = new XMLHttpRequest();
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xhr.open('POST', 'https://www.japanesepod101.com/learningcenter/reference/dictionary_post');
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xhr.setRequestHeader('Content-Type', 'application/x-www-form-urlencoded');
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xhr.addEventListener('error', () => reject(new Error('Failed to scrape audio data')));
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xhr.addEventListener('load', () => resolve(xhr.responseText));
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xhr.send(`post=dictionary_reference&match_type=exact&search_query=${encodeURIComponent(definition.expression)}`);
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});
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const dom = new DOMParser().parseFromString(response, 'text/html');
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for (const row of dom.getElementsByClassName('dc-result-row')) {
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try {
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const url = row.querySelector('audio>source[src]').getAttribute('src');
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const reading = row.getElementsByClassName('dc-vocab_kana').item(0).textContent;
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if (url && reading && (!definition.reading || definition.reading === reading)) {
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return this.normalizeUrl(url, 'https://www.japanesepod101.com', '/learningcenter/reference/');
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}
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} catch (e) {
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// NOP
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}
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}
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throw new Error('Failed to find audio URL');
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}
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async _getUriJisho(definition) {
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const response = await new Promise((resolve, reject) => {
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const xhr = new XMLHttpRequest();
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xhr.open('GET', `https://jisho.org/search/${definition.expression}`);
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xhr.addEventListener('error', () => reject(new Error('Failed to scrape audio data')));
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xhr.addEventListener('load', () => resolve(xhr.responseText));
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xhr.send();
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});
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const dom = new DOMParser().parseFromString(response, 'text/html');
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try {
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const audio = dom.getElementById(`audio_${definition.expression}:${definition.reading}`);
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if (audio !== null) {
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const url = audio.getElementsByTagName('source').item(0).getAttribute('src');
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if (url) {
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return this.normalizeUrl(url, 'https://jisho.org', '/search/');
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}
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}
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} catch (e) {
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// NOP
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}
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throw new Error('Failed to find audio URL');
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}
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async _getUriTextToSpeech(definition, options) {
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const voiceURI = options.audio.textToSpeechVoice;
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if (!voiceURI) {
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throw new Error('No voice');
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}
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return `tts:?text=${encodeURIComponent(definition.expression)}&voice=${encodeURIComponent(voiceURI)}`;
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}
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async _getUriTextToSpeechReading(definition, options) {
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const voiceURI = options.audio.textToSpeechVoice;
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if (!voiceURI) {
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throw new Error('No voice');
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}
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return `tts:?text=${encodeURIComponent(definition.reading || definition.expression)}&voice=${encodeURIComponent(voiceURI)}`;
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}
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async _getUriCustom(definition, options) {
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const customSourceUrl = options.audio.customSourceUrl;
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return customSourceUrl.replace(/\{([^}]*)\}/g, (m0, m1) => (hasOwn(definition, m1) ? `${definition[m1]}` : m0));
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}
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}
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